“After consultation with my Generals and military experts, please be advised that the United States Government will not accept or allow transgender individuals to serve in any capacity in the U.S. Military,” Trump announced via Twitter. “Our military must be focused on decisive and overwhelming victory and cannot be burdened with the tremendous medical costs and disruption that transgender in the military would entail. Thank you.”

Trump’s decision will roll back military policy after the Obama administration lifted the ban last year, allowing transgender soldiers to openly serve in the United States Military.

The Department of Defense policy drew sharp criticism, as it supported service members looking to change their gender, making them eligible to receive coverage for “medically necessary care and treatment.”

“This is the right thing to do for our people and for the force,” former Defense Secretary Ash Carter said in announcing the policy. “We’re talking about talented Americans who are serving with distinction or who want the opportunity to serve. We can’t allow barriers unrelated to a person’s qualifications prevent us from recruiting and retaining those who can best accomplish the mission.”

It is not yet clear what effect this decision will have on the roughly 250 transgender individuals currently serving openly in the armed forces.

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